The Thingianola

A little bit of cardboard modding at the circuit bending sesh on Sunday 26th April. Lightproofed in cardboard a strip of paper with a slit of varying width is passed across the only hole to the light-sensitive bit of the Thingamagoop. The wider the slit, the higher the pitch. In theory a pianola-style score could be written on a long strip. That would involve working out the pitch differences between various sized holes. But it could work.